Safety protection device for crane maintenance

Abstract

The utility model relates to the technical field of protection devices, and discloses a safety protection device for crane maintenance, which comprises a base, two sides of the top of the base are both fixedly provided with foot stopping blocks, the tops of the foot stopping blocks are fixedly provided with a plurality of handrails, the tops of the handrails are fixedly provided with a cross rod, and two ends of the top of the cross rod are both fixedly provided with first bosses. According to the safety protection device for crane maintenance, when a maintainer is located at the top of the base, the maintainer can be protected through the baffle inserted into the inserting hole through the telescopic rod, the maintainer is prevented from falling off, through installation of a lantern ring and a connecting buckle, the maintainer can conveniently hang a safety belt, double anti-falling protection is formed, and the safety of the maintainer is improved. The safety, the applicability and the reliability during maintenance are improved, the falling risk in the crane maintenance process is further reduced, meanwhile, the operation efficiency is improved, the lantern ring is movably designed and can move along with the movement of maintenance personnel on the premise that safety protection is guaranteed, and the hanging position is prevented from being replaced in the midway.

Description

Technical Field

[0001] This utility model relates to the field of protective device technology, and in particular to a safety protection device for crane maintenance. Background Technology

[0002] A crane is a multi-action lifting machine that vertically lifts and horizontally moves heavy objects within a certain range. Also known as an overhead crane, gantry crane, or tire crane, its main characteristics are: the driver's cab and the lifting control cab are combined into one unit; it evolved from a crawler crane, replacing the tracks and traveling support of the traveling mechanism with a tire-equipped chassis, overcoming the disadvantage of crawler crane tracks damaging the road surface; and it belongs to the category of material handling machinery.

[0003] During crane maintenance, maintenance personnel need to perform complex actions such as leaning forward, bending over, or carrying tools to operate near the edge. Their working posture can easily cause their center of gravity to shift beyond the protective boundary of the fixed guardrail. If there is oil, vibration, or sudden external interference on the work platform, it may cause personnel to slip, lose their center of gravity, or misoperate and climb over the protective barrier, exposing personnel to the risk of falling from a height and seriously threatening the life safety of the workers. Utility Model Content

[0004] The technical problem to be solved by this utility model is that the existing technology lacks redundant safety protection measures for maintenance personnel. To address this, we propose a safety protection device for crane maintenance.

[0005] To achieve the above objectives, this application adopts the following technical solution: a safety protection device for crane maintenance, comprising a base, toe blocks fixed on both sides of the top of the base, several railings fixed on the top of the toe blocks, a crossbar fixed on the top of the railings, a first boss fixed at both ends of the top of the crossbar, a sliding rod fixed on the facing surface of the first boss, five collars slidably connected to the surface of the sliding rod, a connecting buckle fixed on the outer surface of the collar, a rotating shaft provided on both sides of the top of the base, both ends of the rotating shaft fixed to the toe blocks, a baffle rotatably connected to the surface of the rotating shaft, telescopic holes provided at both ends of the crossbar, a telescopic rod slidably connected inside the telescopic holes, a control block fixed to the surface of the telescopic rod, through grooves slidably connected to the control blocks at the top of both ends of the crossbar, and insertion holes for use with the telescopic rods provided at the top of both sides of the baffle.

[0006] Preferably, a second boss is fixed to one side of the first boss, and a limiting rod that cooperates with the connecting buckle is fixed to the opposite side of the second boss.

[0007] Preferably, the top of the base has several drainage holes and several protrusions.

[0008] Preferably, a spring is fixed to the other end of the telescopic rod, and the other end of the spring is fixed to the inside of the telescopic hole.

[0009] Preferably, both ends of one side of the baffle are fixed with limit plates, and one side of the crossbar is provided with a groove that cooperates with the limit plates.

[0010] Preferably, a first reflective strip is installed on the outer surface of the crossbar, a second reflective strip is installed on both sides of the base, and a reflector is installed on the outer side of the baffle.

[0011] Preferably, three cushioning pads are installed on the inner side of the baffle.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] In this invention, when maintenance personnel are located at the top of the base, the baffle connected to the telescopic rod and the socket can protect them from falling. The installation of the collar and connecting buckle makes it easy for maintenance personnel to attach the safety belt, forming double fall protection to improve the safety, applicability and reliability during maintenance, further reduce the risk of falling during crane maintenance, and improve work efficiency. The movable design of the collar can move with the maintenance personnel while ensuring safety protection, avoiding the need to change the attachment position midway.

[0014] In this invention, the limiting plate and the groove are engaged to ensure that the baffle can only rotate counterclockwise, thus facilitating maintenance personnel to access the top of the base. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the baffle flipping structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the crossbar structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the disassembled structure of the first and second reflective strips of this utility model;

[0019] Figure 5 This is a schematic diagram of the baffle structure of this utility model.

[0020] Legend: 1. Base; 2. Foot stop; 3. Railing; 4. Crossbar; 5. First boss; 6. Sliding rod; 7. Collar; 8. Connecting buckle; 9. Second boss; 10. Limiting rod; 11. Drain hole; 12. Protrusion; 13. Rotating shaft; 14. Baffle; 15. Telescopic hole; 16. Telescopic rod; 17. Control block; 18. Through groove; 19. Insertion hole; 20. Spring; 21. Limiting plate; 22. Groove; 23. First reflective strip; 24. Second reflective strip; 25. Reflector; 26. Buffer pad. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and preferred embodiments. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0022] Reference Figures 1-5 As shown, this utility model provides a technical solution: a safety protection device for crane maintenance, including a base 1, with foot blocks 2 fixed on both sides of the top of the base 1, several railings 3 fixed on the top of the foot blocks 2, a crossbar 4 fixed on the top of the railings 3, a first boss 5 fixed at both ends of the top of the crossbar 4, a sliding rod 6 fixed on the facing surface of the first boss 5, five collars 7 slidably connected to the surface of the sliding rod 6, a connecting buckle 8 fixed on the outer surface of the collars 7, a rotating shaft 13 provided on both sides of the top of the base 1, both ends of the rotating shaft 13 fixed to the foot blocks 2, a baffle 14 rotatably connected to the surface of the rotating shaft 13, telescopic holes 15 opened at both ends of the crossbar 4, a telescopic rod 16 slidably connected inside the telescopic holes 15, a control block 17 fixed to the surface of the telescopic rod 16, and a control block 17 fixed to the surface of the telescopic rod 16. A through groove 18 is provided to slide with the control block 17. The top of both sides of the baffle 14 is provided with a socket 19 for use with the telescopic rod 16. The position of the baffle 14 is fixed by the insertion of the telescopic rod 16 into the socket 19. When the maintenance personnel are on the top of the base 1, the baffle 14, which is inserted into the socket 19 through the telescopic rod 16, can protect the maintenance personnel and prevent them from falling. The installation of the collar 7 and the connecting buckle 8 makes it easy for the maintenance personnel to attach the safety belt, forming a double anti-fall protection to improve the safety, applicability and reliability during maintenance, further reduce the risk of falling during crane maintenance, and improve work efficiency. The movable design of the collar 7 can move with the maintenance personnel while ensuring safety protection, avoiding the need to change the attachment position midway.

[0023] Reference Figure 3As shown in this embodiment: a second protrusion 9 is fixed on one side of the first protrusion 5, and a limiting rod 10 that works with the connecting buckle 8 is fixed on the opposite side of the second protrusion 9. By setting the limiting rod 10, the position of the connecting buckle 8 is limited, preventing the connecting buckle 8 from rotating to the side away from the maintenance personnel. The limiting makes it convenient for maintenance personnel to use.

[0024] Reference Figure 2 As shown in this embodiment: the top of the base 1 is provided with several drainage holes 11 and several protrusions 12. The drainage holes 11 can prevent water from accumulating on the top of the base 1 during outdoor construction, while the protrusions 12 provide a certain friction to prevent maintenance personnel from slipping when moving.

[0025] Reference Figure 3 As shown in this embodiment: a spring 20 is fixed to the other end of the telescopic rod 16, and the other end of the spring 20 is fixed to the inside of the telescopic hole 15. After the telescopic rod 16 is inserted into the insertion hole 19, the elastic force generated by the spring 20 limits the position of the telescopic rod 16, preventing the telescopic rod 16 from detaching from the inside of the insertion hole 19 and preventing the baffle 14 from opening on its own.

[0026] Reference Figure 2 and Figure 5 As shown in this embodiment: both ends of one side of the baffle 14 are fixed with limit plates 21, and one side of the crossbar 4 is provided with a groove 22 that cooperates with the limit plate 21. By the engagement of the limit plate 21 and the groove 22, the baffle 14 can only rotate counterclockwise when it is rotated, which makes it easier for maintenance personnel to enter the top of the base 1.

[0027] Reference Figure 4 As shown in this embodiment: a first reflective strip 23 is installed on the outer surface of the crossbar 4, a second reflective strip 24 is installed on both sides of the base 1, and a reflector 25 is installed on the outer side of the baffle 14. The first reflective strip 23, the second reflective strip 24 and the reflector 25 are arranged to provide a warning function.

[0028] Reference Figure 4 As shown in this embodiment, three buffer pads 26 are installed on the inner side of the baffle 14. The buffer pads 26 are designed to buffer and absorb energy when the baffle 14 is flipped, thus avoiding a large impact on the base 1.

[0029] Working Principle: The installation of the collar 7 and connecting buckle 8 facilitates the attachment of safety belts by maintenance personnel, forming double fall protection to improve safety, applicability, and reliability during maintenance, further reducing the risk of falls during crane maintenance, and improving work efficiency. The movable design of the collar 7 allows it to move with the maintenance personnel while ensuring safety protection, avoiding the need to change the attachment position midway. The setting of the limiting rod 10 limits the position of the connecting buckle 8, preventing it from rotating to the side away from the maintenance personnel. This limiting facilitates the use of the maintenance personnel. The opening of the drainage hole 11 prevents water accumulation on the top of the base 1 during outdoor construction, while the setting of the protrusion 12 provides a certain degree of friction to prevent the maintenance personnel from slipping when moving. The position of the baffle 14 is fixed by the insertion of the telescopic rod 16 into the socket 19. When the maintenance personnel are on top of the base 1, the baffle 14, connected by the telescopic rod 16 and the socket 19, can protect the maintenance personnel and prevent them from falling. After the telescopic rod 16 is inserted into the socket 19, the elastic force generated by the spring 20 limits the position of the telescopic rod 16, preventing the telescopic rod 16 from disengaging from the socket 19 and preventing the baffle 14 from opening on its own. The engagement of the limiting plate 21 and the groove 22 ensures that the baffle 14 can only rotate counterclockwise, making it easier for maintenance personnel to enter the top of the base 1. The buffer pad 26 acts as a buffer and absorbs energy when the baffle 14 is flipped, preventing a large impact on the base 1.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A safety protection device for crane maintenance, comprising a base, characterized in that: Both sides of the top of the base are fixed with foot blocks. Several railings are fixed to the top of the foot blocks. A crossbar is fixed to the top of the railings. A first boss is fixed to both ends of the top of the crossbar. A sliding rod is fixed to the facing surface of the first boss. Five collars are slidably connected to the surface of the sliding rod. A connecting buckle is fixed to the outer surface of the collar. Rotating shafts are provided on both sides of the top of the base. Both ends of the rotating shafts are fixed to the foot blocks. A baffle is rotatably connected to the surface of the rotating shafts. Telescopic holes are opened at both ends of the crossbar. Telescopic rods are slidably connected inside the telescopic holes. A control block is fixed to the surface of the telescopic rod. Through slots that slidably connect to the control blocks are opened at the top of both ends of the crossbar. Insertion holes that cooperate with the telescopic rods are opened at the top of both sides of the baffle.

2. The safety protection device for crane maintenance according to claim 1, characterized in that: A second boss is fixed to one side of the first boss, and a limiting rod that works in conjunction with the connecting buckle is fixed to the opposite side of the second boss.

3. A safety protection device for crane maintenance according to claim 1, characterized in that: The top of the base has several drainage holes and several protrusions.

4. A safety protection device for crane maintenance according to claim 1, characterized in that: A spring is fixed to the other end of the telescopic rod, and the other end of the spring is fixed to the inside of the telescopic hole.

5. A safety protection device for crane maintenance according to claim 1, characterized in that: Limiting plates are fixed at both ends on one side of the baffle, and a groove is provided on one side of the crossbar to cooperate with the limiting plates.

6. A safety protection device for crane maintenance according to claim 1, characterized in that: A first reflective strip is installed on the outer surface of the crossbar, a second reflective strip is installed on both sides of the base, and a reflector is installed on the outer side of the baffle.

7. A safety protection device for crane maintenance according to claim 1, characterized in that: Three cushioning pads are installed on the inner side of the baffle.

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